Metric PVC-U Blind Flange PN16 d20-d225

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The Georg Fischer metric PVC-U blind flange PN16 provides a dependable, high-integrity mechanical termination for pressurized industrial piping assemblies. Designed specifically to blank off pipe lines, inspection ports, valve manifolds, and equipment nozzles, this solid blanking component ensures positive isolation and zero fluid bypass. Manufactured from unplasticised polyvinyl chloride (PVC-U) in standard industrial dark grey (RAL 7011), it exhibits outstanding structural rigidity and chemical inertness against a broad spectrum of inorganic acids, alkalis, brine, and mineral salts. Supplied across Europe by BigWeld, an authorised Georg Fischer distributor, this blind flange meets stringent quality criteria for industrial water treatment, chemical processing, cooling circuits, and utility networks.

Engineered for seamless integration into metric flanged piping systems, this blind flange features a rated nominal operating pressure of 16 bar (PN16) at an ambient reference temperature of 20 degrees Celsius. In accordance with thermoplastic piping design parameters, PVC-U flange assemblies operate safely up to an upper medium limit of 45 degrees Celsius, with corresponding pressure de-rating applied at elevated thermal loads. The precisely machined sealing face guarantees uniform gasket loading when paired with flat or profile elastomeric gaskets (such as EPDM or FKM) and standard backing rings, preventing joint distortion and bolt relaxation.

Key technical specifications:

• Material: High-grade unplasticised polyvinyl chloride (PVC-U), dark grey RAL 7011.
• Nominal Pressure: PN16 (16 bar at 20 degrees Celsius).
• Sizing Range: Metric diameters d20 mm to d225 mm.
• Temperature Window: Up to 45 degrees Celsius for PVC-U flanged components.
• Compatibility: Resistant to acids, bases, salts, and treated process water.
• Purpose: Positive pipe end blanking, equipment isolation, and maintenance shutoff.